* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #2563eb;
  --secondary-color: #64748b;
  --success-color: #16a34a;
  --danger-color: #dc2626;
  --background: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

header {
  background: linear-gradient(135deg, #5b6edc 0%, #6f63b8 100%);
  padding: 24px 32px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 26px;
  color: white;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 20px;
}

.printer-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  font-weight: 500;
}

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--secondary-color);
  animation: pulse 2s infinite;
}

.printer-status.connected .status-indicator {
  background: var(--success-color);
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

.card {
  background: var(--card-bg);
  padding: 28px;
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  margin-bottom: 24px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.card h2 {
  font-size: 18px;
  margin-bottom: 20px;
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 14px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: #1d4ed8;
}

.btn-secondary {
  background: var(--secondary-color);
  color: white;
}

.btn-secondary:hover:not(:disabled) {
  background: #556274;
}

.btn-success {
  background: var(--success-color);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background: #15803d;
}

.btn-danger {
  background: var(--danger-color);
  color: white;
  padding: 6px 12px;
  font-size: 13px;
}

.btn-danger:hover:not(:disabled) {
  background: #b91c1c;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.selection-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.selection-info span {
  color: var(--text-secondary);
  font-size: 14px;
}

.table-container {
  overflow-x: auto;
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

thead {
  background: linear-gradient(to bottom, #f8fafc, #f1f5f9);
  position: sticky;
  top: 0;
  z-index: 10;
}

th {
  padding: 14px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 14px 12px;
  border-bottom: 1px solid #f1f5f9;
  font-size: 14px;
  vertical-align: middle;
}

tbody tr {
  transition: background-color 0.15s ease;
}

tbody tr:hover {
  background: #f8fafc;
}

.no-data {
  text-align: center;
  color: var(--text-secondary);
  padding: 60px 20px !important;
  font-size: 15px;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 8px 0;
}

#pageInfo {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 80px;
  text-align: center;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.loading-overlay p {
  color: white;
  margin-top: 16px;
  font-size: 16px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.product-actions {
  display: flex;
  gap: 8px;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  max-height: 500px;
  overflow-y: auto;
  padding: 4px;
}

.categories-grid::-webkit-scrollbar {
  width: 8px;
}

.categories-grid::-webkit-scrollbar-track {
  background: var(--background);
  border-radius: 4px;
}

.categories-grid::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.categories-grid::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-color);
}

.category-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.category-card:hover {
  border-color: var(--primary-color);
  background: #f8fafc;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.15);
}

.category-card.selected {
  border-color: var(--primary-color);
  background: #eff6ff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.category-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}

.category-parent {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  opacity: 0.8;
}

.category-level {
  display: inline-block;
  font-size: 11px;
  color: var(--primary-color);
  background: #e0e7ff;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 500;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

/* Categories new UI */
.categories-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.categories-controls .controls-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.categories-controls input[type="text"] {
  width: 260px;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 14px;
}

.category-tree {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #fff;
  max-height: 500px;
  overflow: auto;
}
.category-tree ul {
  list-style: none;
  padding: 8px 8px 8px 0;
}
.category-tree li {
  position: relative;
  padding-left: 24px;
  margin: 4px 8px;
  border-radius: 6px;
}
.category-tree li .row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
}
.category-tree li .row:hover { background: #f8fafc; }
.category-tree li .toggle {
  position: absolute;
  left: 4px;
  top: 8px;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: #fff;
  user-select: none;
}
.category-tree li.leaf .toggle { visibility: hidden; }
.category-tree li.selected > .row { background: #eff6ff; box-shadow: 0 0 0 2px rgba(37,99,235,0.15) inset; }
.category-tree .meta {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  margin-left: auto;
}
.badge-level {
  font-size: 11px;
  color: var(--primary-color);
  background: #e0e7ff;
  padding: 2px 6px;
  border-radius: 999px;
}
.badge-count {
  font-size: 11px;
  color: #475569;
  background: #eef2f7;
  padding: 2px 6px;
  border-radius: 999px;
}
.badge-parent { font-size: 12px; color: var(--text-secondary); opacity: .8; }

.category-tree .children { margin-left: 16px; }
.category-tree .collapsed > .children { display: none; }

.category-tree .title mark {
  background: #fffbcc;
  padding: 0 2px;
  border-radius: 3px;
}
.category-tree .breadcrumb {
  color: var(--text-secondary);
  opacity: 0.8;
  font-size: 12px;
  margin-right: 6px;
}
.category-tree .crumb-line { color: var(--text-secondary); opacity: .8; margin-right: 6px; }

@media (max-width: 768px) {
  .categories-controls input[type="text"] { width: 100%; }
}

/* Breadcrumb bar */
.breadcrumb-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 8px 0 16px 0;
  padding: 8px 10px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 13px;
}
.breadcrumb-bar .crumb {
  color: var(--primary-color);
  cursor: pointer;
}
.breadcrumb-bar .crumb:hover { text-decoration: underline; }
.breadcrumb-bar .sep { color: var(--text-secondary); opacity: .8; }

.settings-section {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.settings-section:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.settings-section h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.radio-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-weight: 400;
  color: var(--text-primary);
}

.radio-group input[type="radio"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.hint {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  font-weight: 400;
}

.quantity-input {
  width: 70px !important;
  padding: 6px 8px !important;
  text-align: center;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.modal-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow: auto;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
}

.btn-close {
  background: none;
  border: none;
  font-size: 28px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s;
}

.btn-close:hover {
  background: var(--background);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  text-align: center;
}

.modal-body canvas {
  max-width: 100%;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  background: white;
}

.preview-info {
  text-align: left;
  background: var(--background);
  padding: 16px;
  border-radius: 8px;
  margin-top: 16px;
}

.preview-info p {
  margin: 8px 0;
  font-size: 14px;
  color: var(--text-primary);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--background);
  border-radius: 0 0 12px 12px;
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .header-controls {
    width: 100%;
    flex-direction: column;
  }

  .filters-grid {
    grid-template-columns: 1fr;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .selection-info {
    width: 100%;
    justify-content: space-between;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 95%;
    max-height: 95vh;
  }
}

/* Designer */
.designer-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 16px;
}

.designer-left {
  background: var(--card-bg);
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  padding: 12px;
}

.canvas-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.canvas-toolbar .btn.btn-sm {
  padding: 6px 10px;
}

.canvas-toolbar .inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
}

.canvas-wrap {
  width: 100%;
  overflow: auto;
  background: repeating-conic-gradient(#0000 0 90deg, #f8fafc 0 180deg) 0 0/20px 20px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
}

#designerCanvas {
  display: block;
  margin: 0 auto;
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.canvas-hint {
  margin-top: 8px;
  color: var(--text-secondary);
  font-size: 12px;
}

.designer-right .designer-controls h3 {
  margin: 12px 0;
}

.designer-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 12px 0;
}

/* Toasts */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 3000;
}

.toast {
  min-width: 260px;
  max-width: 360px;
  padding: 12px 14px;
  border-radius: 10px;
  color: #0b1020;
  background: #fff;
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  animation: slideIn 0.25s ease;
}

.toast .icon {
  font-size: 18px;
}

.toast .content {
  flex: 1;
  font-size: 14px;
}

.toast.success { border-left: 4px solid var(--success-color); }
.toast.error { border-left: 4px solid var(--danger-color); }
.toast.info { border-left: 4px solid var(--primary-color); }

@keyframes slideIn {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 1024px) {
  .designer-grid {
    grid-template-columns: 1fr;
  }
}

/* Advanced collapsible sections */
.advanced-card details {
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  padding: 0;
  background: #fafbff;
  margin-bottom: 14px;
}

.advanced-card summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-primary);
  background: linear-gradient(to bottom, #fff, #f6f7fb);
  border-radius: 10px;
}

.advanced-card summary::-webkit-details-marker { display: none; }

.advanced-card .chevron {
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--text-secondary);
  border-bottom: 2px solid var(--text-secondary);
  transform: rotate(-45deg);
  transition: transform 0.2s ease;
  margin-right: 2px;
}

.advanced-card details[open] summary .chevron { transform: rotate(45deg); }

.advanced-card .details-body {
  padding: 8px 12px 14px 12px;
}

/* Flatten nested cards inside details to be less heavy */
.advanced-card .card.flat {
  box-shadow: none;
  border: 1px solid var(--border-color);
  background: #fff;
  padding: 16px;
}

/* Make hints slightly subtler globally */
.hint { opacity: 0.9; }